Working moms face a perennial challenge in balancing their families and careers. But it turns out they can have it all. They just have to follow in the footsteps of walking disgrace Anthony Weiner.

These days, the former congressman is a stay-at-home dad trying to save his marriage — who doubles as an unregistered lobbyist pulling in . . . more than $350,000 a year.

“I am pretty good at it,” he told The New York Times of his business-consulting gigs. Weiner made it clear that he “didn’t have to do very much or work very hard to drum up business.”

The ex-lawmaker sounds surprised that companies are showering him with easy money, but that’s how Washington works. When lawmakers retire, they don’t fade away. They cash in by trading on their names and connections.

That’s true for esteemed politicians and even schnooks like Weiner, who resigned from office after sending photographs of his genitals to complete strangers.

Yes, America, businesses want his help.

No, they’re not that crazy to want it.

Weiner has been reaching out to federal officials and members of Congress on his clients’ behalf, and he’s doing it at pennies on the dollar.

“I make far less money than I should,” he complained to the Times.

Which helps explain why he’s floating a mayoral run: It keeps his name in the headlines and boosts his value for his clients and himself.

“I am a good capitalist,” he boasted.

Scratch that. Weiner’s found a way to mix Washington’s muck with his own brand of grime — and turn it into a fat paycheck.

So, you see, it seems Weiner can have it all: family and fortune, all at the same time.

Still, there’s one thing the disgraced former congressman is not likely ever to regain: his dignity.